from __future__ import annotations

from aiohttp import ClientSession
import os
import json
import re

from ..typing import AsyncResult, Messages
from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
from .helper import format_prompt

class ChatGptEs(AsyncGeneratorProvider, ProviderModelMixin):
    url = "https://chatgpt.es"
    api_endpoint = "https://chatgpt.es/wp-admin/admin-ajax.php"
    working = True
    supports_stream = True
    supports_system_message = True
    supports_message_history = True
    
    default_model = 'gpt-4o'
    models = ['gpt-4o', 'gpt-4o-mini', 'chatgpt-4o-latest']
    
    model_aliases = {
        "gpt-4o": "chatgpt-4o-latest",
    }

    @classmethod
    def get_model(cls, model: str) -> str:
        if model in cls.models:
            return model
        elif model in cls.model_aliases:
            return cls.model_aliases[model]
        else:
            return cls.default_model

    @classmethod
    async def create_async_generator(
        cls,
        model: str,
        messages: Messages,
        proxy: str = None,
        **kwargs
    ) -> AsyncResult:
        model = cls.get_model(model)
        
        headers = {
            "authority": "chatgpt.es",
            "accept": "application/json",
            "origin": cls.url,
            "referer": f"{cls.url}/chat",
            "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36",
        }

        async with ClientSession(headers=headers) as session:
            initial_response = await session.get(cls.url)
            nonce_ = re.findall(r'data-nonce="(.+?)"', await initial_response.text())[0]
            post_id = re.findall(r'data-post-id="(.+?)"', await initial_response.text())[0]

            formatted_prompt = format_prompt(messages)
            
            conversation_history = [
                "Human: You are a helpful AI assistant. Please respond in the same language that the user uses in their message. Provide accurate, relevant and helpful information while maintaining a friendly and professional tone. If you're not sure about something, please acknowledge that and provide the best information you can while noting any uncertainties. Focus on being helpful while respecting the user's choice of language."
            ]

            for message in messages[:-1]:
                if message['role'] == "user":
                    conversation_history.append(f"Human: {message['content']}")
                else:
                    conversation_history.append(f"AI: {message['content']}")

            payload = {
                '_wpnonce': nonce_,
                'post_id': post_id,
                'url': cls.url,
                'action': 'wpaicg_chat_shortcode_message',
                'message': formatted_prompt,
                'bot_id': '0',
                'chatbot_identity': 'shortcode',
                'wpaicg_chat_client_id': os.urandom(5).hex(),
                'wpaicg_chat_history': json.dumps(conversation_history)
            }

            async with session.post(cls.api_endpoint, headers=headers, data=payload) as response:
                response.raise_for_status()
                result = await response.json()
                yield result['data']
